package string;

/**
 * boolean matches(String regex):匹配
 * 使用给定的正则表达式
 */
public class MatchesDemo {
    public static void main(String[] args) {
        /*
        邮箱正则表达式:
            [a-zA-Z0-9_]+@[a-zA-Z0-9]+(\.[a-zA-Z]+)+
         */
        String email = "wangxy@qq.com";
        String regex = "[a-zA-Z0-9_]+@[a-zA-Z0-9]+(\\.[a-zA-Z]+)+";
        boolean match = email.matches(regex);
        if (match){
            System.out.println("是正确的邮箱格式");
        }else {
            System.out.println("不是正确的邮箱格式");
        }
    }
}
